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December 18, 2015 02:29
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Get iOS Device MacAddress
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+ (NSString *)macAddress{ | |
int mib[6]; | |
size_t len; | |
char *buf; | |
unsigned char *ptr; | |
struct if_msghdr *ifm; | |
struct sockaddr_dl *sdl; | |
mib[0] = CTL_NET; | |
mib[1] = AF_ROUTE; | |
mib[2] = 0; | |
mib[3] = AF_LINK; | |
mib[4] = NET_RT_IFLIST; | |
if ((mib[5] = if_nametoindex("en0")) == 0) { | |
printf("Error: if_nametoindex error\n"); | |
return @"-1"; | |
} | |
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) { | |
printf("Error: sysctl, take 1\n"); | |
return @"-1"; | |
} | |
if ((buf = malloc(len)) == NULL) { | |
printf("Could not allocate memory. error!\n"); | |
return @"-1"; | |
} | |
if (sysctl(mib, 6, buf, &len, NULL, 0) < 0) { | |
free(buf); | |
printf("Error: sysctl, take 2"); | |
return @"-1"; | |
} | |
ifm = (struct if_msghdr *)buf; | |
sdl = (struct sockaddr_dl *)(ifm + 1); | |
ptr = (unsigned char *)LLADDR(sdl); | |
NSString *outstring = [NSString stringWithFormat:@"%02X:%02X:%02X:%02X:%02X:%02X", | |
*ptr, *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4), *(ptr+5)]; | |
free(buf); | |
return outstring; | |
} |
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